Rice Krispies Peanut Butter Balls, a healthy back-to-school snack to fill you up with energy. Yummy rice krispies, finger-licking peanut butter, delicious ripen banana, nutritious oats, and a bit of good-quality cocoa powder. And nothing else, no loads of powdered sugar, no junk. You won't believe how tasty these balls are! Ready in about 5 minutes, these are the best rice krispie treats to add to your kid's school lunch box.